Apparatus for the manufacture of gas



(No Model.) 2 Sheets--Sheet 1.

M. S. GREENOUGH, E. O. JONES &; W. R. ADDIGKS.

' APPARATUS FOR THE MANUFACTURE OF GAS.

No. 429,309. 1 Patented-June 3, 1890-.

(No Model!) v 2 Sheets-Sheet 2} S; GRBENOUGH, E. G. JONES 8v W. R; ADDIOKS.

APPARATUS FOR THE MANUFACTURE OF GAS.

Patented {un rfihiifiihnnunummmml I ywwww y W WW6 UNITED STATES P TENT OFFICE.

MALCOLM S. GREENOUGH, EDWARD O. JONES, AND VALTER R. ADDIOKS, OF BOSTON, MASSACHUSETTS.

APPARATUS FOR THE MANUFACTURE OF GAS.

SPECIFICATION forming part of Letters Patent No. 429,309, dated June 3, 1890.

Application filed December 21, 1889. Serial No. 334,555- (No model.)

T0 all whom, it may concern:

Be it known that We, MALCOLM S. GREEN- OUGH, EDWARD O. J ones, and WALTER R. ADDICKS, citizens of the United States, and residents of Boston, in the county of Suifolk and State of Massachusetts, have jointly invented new and useful Improvements in Apparatus for the Manufacture of Gas, of which the following, taken in connection with the accompanying drawings, is a specification.

. This invention relates to improvements in the manufacture of illuminating-gas, and it is carried out as follows, reference being had to the accompanying drawings, wherein Figure 1 represents a plan view of our improved apparatus for making illuminatinggas, a portion of the generator being shown in section. Fig. 2 represents a longitudinal section on the line X X shown in Fig. 1, and Fig. 3 represents a cross-section on the line Y Y shown in Fig. 1.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

In carrying out our invention we make use of a gas-generator A, (shown in Figs. 1 and 2,) having, as usual, a central fire-pot a, in which the fuel B is contained. a is an opening through the upper end of the generator for feeding the fuel into the fire-pot and for admitting air thereto, so as to bring the fuel to incandescence after being ignited, as is common in certain designs of water-gas apparatus.

The opening a is adapted to be closed by means of a cover a" previous to the introduction of steam and liquid hydrocarbons into the heated contents of thefire-pot in the ordinary manner. l

a is the grate at the lower end of the firepot a, as usual, below which is the central passage a communicating with the horizontal flue 0?, leading to the boiler O, which is represented as a vertical tubular one with tubes 0 c 0; but this is not essential, as any well-known form of boiler maybe used without departing from the essence of our invention. WVhile the fuel in the fire-pot a is being passage a, through flue a and up through the boiler-tubes c c c and into a heating-chamber D, preferably arranged on top *of the,

boiler O, as shown in Fig. 2; but this is not essential, as said heating-chamber may be constructed and arranged relatively to said boiler without materially affecting the nature and purpose of our invention.

(Z is a pipe leading from the heating-chamber D to anyplace where it is desired to store or use what is termed producer-gas or fuelgas, obtained by the combustion of the fuel in the generator during the time the latter is brought'to a high heat and previous to the introd uction into the incandescent fuel of steam and liquid hydrocarbons.

The object of the heating-chamber D is to utilize the radiated heat from the producergas to vaporize the liquid hydrocarbon before the latter is fed into the fire-pot, and for this purpose a series of pipes E E are arranged inside of the chamber D, and preferably connected together outside of said chamber by means of elbows or return-bends e e, so as to ascertain anyleakage that may occur where the pipes and bends are connected, as Well as to prevent such leakage from taking place inside said heating-chamber.

E is the hydrocarbon-supply pipe connected in a suitable manner to one end of the system of pipes E E, which pipe is preferably surrounded by a jacket or chamber E", containingsteam, so as to raise the temperature of the' liquid hydrocarbon more or less, as

'may..be desired, before it is passed through the Vaporizers E E on its way to the generator. One end of the pipe system or vaporizers E E is connected to the upper portion of the fire-pot a, or internal part of the generator, by means of a pipe F, as shown in Figs. 1 and 2, and we preferto locate on such pipe, between the vaporizer and generator, a closed chamber trap or box G, adapted to arrest and collect tar or heavier matters not carried over in suspension to the generator, such trap or box being preferably provided with aremovable cover g, which may be de tached whenever it is desired to remove the accumulation from said box.

H is a steam-pipe leading from any suitable source of steam-pressure to the interior of the fire-pot a, as shown in Fig. 2.

Around the fire-pot (L we make a series of: vertical fines or passages l I, communicating with the upper part of the fire-pot or combustion-chamber a, as shown, said fines being preferably extended from top to bottom of the generator to enable their being cleaned when clogged, and closed in their upper and lower ends by means of suitable cover. it. The lower ends of the lines I communicate with an annular chamber K, surrounding the fire-pot or combustion-chamber at or near its lower end, as shown in Fig. 2. From said annular chamber K leads a pipe, fine, or channel it, provided with a delivery-pipe k, to the scrubber, purifier, and holder of the gas-work.

In Figs. 2 and 3 we have shown the flue arranged parallel and in close proximity to the producer-gas flue a for the purpose of utilizing the heat of the latter in additionally fixing the gas passing from the generator through said passages 7s; but we do not wish to confine ourselves to this precise arrangement, as, if so desired, a pipe may be led direct from the annular chamber K, without going through the brick-work, of which the flue a forms a part.

The chamber a or fine a may be provided with" an air-inlet a, provided with a suitable valve, gate, or cut-off L, for the purpose of admitting air to the fiue a during process of combustion of the fuel I3, and thus increasing the heat of the gaseous products carried to and through the boiler C and heating-chamber D as well as heating the flue 7c.

The operation of our improved apparatus is as follows: The fire-pot a is filled with fuel 15 through the upper opening a, and the fuel ignited and brought to incandescence by forcing air in at the top of the generator and through the fire-pot by means of a steam-jet or any of the well-known mechanical exhausters, preferably placed at some point on the fuel-gas-delivery pipe in the ordinary manner, the gaseous products passing through chamber a", flue a, boiler C, and heatingchamber D, and out through pipe d to the place where the producer or fuel gas is to be stored or used, and during such operation the walls and brick-work of the generator are brought to a very high degree of heat. The water in the boiler O is heated and steam produced therein to be used for any purpose desired, and the liquid hydrocarbon in the pipe system E is vaporized previous to being admitted to the interior of the generator. \Vhen the fuel in the fire-pot a has been brought to incandescence, the pipe (Z and opening a are closed by any suitable devices and steam forced from pipe II upward through the illcandesoent fuel B, causing water-gas to be produced by the decomposition of the steam, the hydrogen gas of which is set free and its oxygen combined with the carbon of the fuel, producing carbonic-oxide gas, as is common in devices of this kind. At the same time that the steam is forced through the incandescentfuel the highly-vaporized hydrocarbon is admitted through pipe F into the upper part of the combustion-chamber a above the fuel therein, causingth ewater-gas to be carbureted, by which it is converted into illuminatinggas, which is forced downward through the heated flue I into the heated annular chamber K, and by passing through said heated passages the gas is made fixed, after which it may be still further fixed, if so desired, by passing through the heated fine 70 on its way to the scrubber, purifier, and holder, as hereinabove described.

In practice we prefer to arrange the apparatus in twin form with two generators in the system, so that while the fuel in one is brought to in candescence illuminatin g-gas is produced in the other, and vice versa, by which a continuous production of the illuminating-gas is maintained.

What we wish to secure by Letters Patent and claim is-- In a gas apparatus, a combustion-chamber and flue a leadingfrom its lower end, as described, a series of vertical fines I I, connecting with the combustion-chamber at their upper ends and connecting at their lower ends with an annular chamber K, surrounding said combustion-chamber, and a flue 7c, leading from the annular chamber K parallel and in close proximity to the said flue a, substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification, in the presence of two subscribing witnesses, on this 2d day of December, A. D. 1889.

MALCOLM S. GREEN OUGI-I. EDWARD C. JONES. \VALTER R. ADDICKS.

WVitnesses:

ALBAN ANDREN, ALBERT A. CI-IITTENDEN. 

